Sequencer's OpenGL render crashes with Grease Pencil
While the bug report you show has been resolved, it hasn't been included in a blender release. You will need a recent daily build (after nov 2016) or build your own from source to get that bug fix.

Note that the bug fix won't help, the solution to stop crashing was to disable grease pencil display in the VSE preview renders. I expect your solution will be to do an OpenGL render from the 3dview and then add the files to the VSE.